Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.
This update upgrades Firefox to version 91.3.0 ESR.
Security Fix(es):
Mozilla: Use-after-free in HTTP2 Session object
Mozilla: Memory safety bugs fixed in Firefox 94 and Firefox ESR 91.3
Mozilla: iframe sandbox rules did not apply to XSLT stylesheets (CVE-2021-38503)
Mozilla: Use-after-free in file picker dialog (CVE-2021-38504)
Mozilla: Firefox could be coaxed into going into fullscreen mode without notification or warning (CVE-2021-38506)
Mozilla: Opportunistic Encryption in HTTP2 could be used to bypass the Same-Origin-Policy on services hosted on other ports (CVE-2021-38507)
Mozilla: Permission Prompt could be overlaid, resulting in user confusion and potential spoofing (CVE-2021-38508)
Mozilla: Javascript alert box could have been spoofed onto an arbitrary domain (CVE-2021-38509)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
RedHat | 8 | aarch64 | firefox | < 91.3.0-1.el8_1 | firefox-91.3.0-1.el8_1.aarch64.rpm |
RedHat | 8 | x86_64 | firefox | < 91.3.0-1.el8_1 | firefox-91.3.0-1.el8_1.x86_64.rpm |
RedHat | 8 | s390x | firefox-debugsource | < 91.3.0-1.el8_1 | firefox-debugsource-91.3.0-1.el8_1.s390x.rpm |
RedHat | 8 | ppc64le | firefox-debugsource | < 91.3.0-1.el8_1 | firefox-debugsource-91.3.0-1.el8_1.ppc64le.rpm |
RedHat | 8 | aarch64 | firefox-debuginfo | < 91.3.0-1.el8_1 | firefox-debuginfo-91.3.0-1.el8_1.aarch64.rpm |
RedHat | 8 | s390x | firefox | < 91.3.0-1.el8_1 | firefox-91.3.0-1.el8_1.s390x.rpm |
RedHat | 8 | ppc64le | firefox-debuginfo | < 91.3.0-1.el8_1 | firefox-debuginfo-91.3.0-1.el8_1.ppc64le.rpm |
RedHat | 8 | s390x | firefox-debuginfo | < 91.3.0-1.el8_1 | firefox-debuginfo-91.3.0-1.el8_1.s390x.rpm |
RedHat | 8 | x86_64 | firefox-debugsource | < 91.3.0-1.el8_1 | firefox-debugsource-91.3.0-1.el8_1.x86_64.rpm |
RedHat | 8 | ppc64le | firefox | < 91.3.0-1.el8_1 | firefox-91.3.0-1.el8_1.ppc64le.rpm |